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GM 6.0L small block marine engine

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Old 10-05-2007 | 08:44 AM
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Originally Posted by handfulz28
The VVT is my wish; the marine 6.0 doesn't have any of that stuff.
If VVT = variable valve timing, the GM 6.0L marine does have it.
http://www.gm.com/explore/technology...LY6_Marine.pdf

How about the Raylar stroker?
http://www.raylarengine.com/550_engine.html
It looks like a modified Vette engine.
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Old 10-05-2007 | 09:32 AM
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Originally Posted by Pat McPherson
If VVT = variable valve timing, the GM 6.0L marine does have it.

How about the Raylar stroker?
http://www.raylarengine.com/550_engine.html
It looks like a modified Vette engine.
No kidding! I hadn't read the '08 specs. Oooof...I wonder how long before, or IF, the aftermarket will tackle making a cam for that system. And it sure won't be cheap. I have to say the curves on that motor just don't look marine friendly.

Raylar's piece will be unique. It's great that they're tackling it, but at an estimated price of $20k, it doesn't appeal to the mass market.
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Old 10-05-2007 | 10:43 AM
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Originally Posted by Pat McPherson
Well this version is not so fugly...
http://www.pcmengines.com/NewFiles/Z...ec%20Sheet.PDF

I'm not so much suggesting to replace the big block but to replace that 320HP/6.2L. The Merc 6.2L does not produce that much more than the 350MagMPI but does cost a lot more.

I think this would be a great engine for 27' to 32' twin engine performance boats.
Maybe Merc Racing should add it to their line?
Last I checked the 350 Mag MPI was in the low $6,000 area ($6,200) rings a bell. The 6.2 is about a grand more than that and even though on the surface only looks like 20HP, it's a much beefier and more powerful engine.

The real deal is the 6.2 repower package. comes with basically everything you need to repower, including the drive and related components. Bravo 1 package is about $12k, Bravo 3 package is about $12.5k
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Old 10-05-2007 | 11:00 AM
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Originally Posted by VetteLT193
Last I checked the 350 Mag MPI was in the low $6,000 area ($6,200) rings a bell. The 6.2 is about a grand more than that and even though on the surface only looks like 20HP, it's a much beefier and more powerful engine.

The real deal is the 6.2 repower package. comes with basically everything you need to repower, including the drive and related components. Bravo 1 package is about $12k, Bravo 3 package is about $12.5k
The pricing you are referring to is for remanufactured engines and drives.
A new 320HP 6.2L Bravo I is like $20,000... the 350MagMPI Bravo I is 17K.
http://www.mercruiserparts.com/mercr...ive_engine.asp
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Old 10-06-2007 | 05:24 AM
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My Ski Nautique has the 6.0 L P.C.M. Motor in it. They rate it at 375 hp. Great motor but seems to not really have much more low end torque than the 5.7. Runs smooth as a Swiss watch though. I believe there was an A.M.T. cat that had these motors and ran very well!
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